Shader Cache Reality: What It Fixes, What It Doesn’t, and Why Stutter Returns
Shader stutter often disappears after you repeat the same path — that’s the tell. Shader cache helps with repeated compilation, but many ‘stutter’ reports are actually CPU scheduling or streaming. If you don’t identify the type, you blame the wrong thing.
What Shader Cache Helps
- First-time effects compilation hitches.
- Repeated runs in the same areas after cache is built.
- Some driver-level shader reuse (depends on game).
What It Does Not Fix
- CPU spikes and background scheduling problems.
- Streaming stutter from storage/decompression.
- Network spikes and bufferbloat issues.
Rule: repeat the same camera path. If the hitch disappears on run #2, it’s likely shader stutter.
Related Guides
Stutter TypesShader vs CPU vs streaming.
Background Load KillersCPU spikes that look like stutter.
Streaming Stutter FixesStorage and decompression hitches.
Frame PacingWhy stutter feels worse than FPS shows.
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